Changeable sign-board.



?atented May 17, 1910.

3 8HEBTSSHEET 1 WITNESSES:

ATTORNEY H. WILLSON.

OHANGEABLE SIGN BOARD. APPLICATION FILED MAR. 13, 1909.

f rs M Du O T N E V N ATTORNEY H. WILLSON.

CHANGEABLE SIGN. BOARD.

.- PPLIGATION FILED MAB.13, 1909.

Patented May 17, 1910.

INVENTbR WITNESSES: 1

ATTORNEY UN E W N Darren, Q

HENRY wnmson, or cirrcneo,,n'qm vors.

CHANGEAJBLE slow-Beam).

Specification of Ietters Patent. Application filed March is, 1909. Serial No. 4s3,i9s.

meats; May, 17,1910.

Toall whom it may concern:

Be it known that I, HENRY WILLSON, citizen of the United States residin at Chicago, county of Cook, and State 0 Illinois, have invented a new and useful Changeable Si -Board; and I do hereby declare the 0 owing to be a full, clear, and exact description of the same.

My invention relates to changeable sign-.

c class in- I coile springs.

y The object of my invention is to provide a dian ble gign-board, easily or auto inatical y adjustable, and which shall be rapidly and conveniently manipulated.

the accompanying drawings, forming part of this specification: Figure 1 shows a front elevation, artly in section, of the sign-board in whicl the retainin barsslide in grooves fashioned in the stan ards; Fig. 2, a vertical section on the line m-y, of Fig. 1; Fig. 3 is a view of one of the characters, showing its attached lug; Fig. 4 is a front elevation of the upper portion of the device, artly broken away, and artly in section;

ig. 5 is a view similar to ig. 4, also partly broken away and partly in section, and

showing fixed bars having attached thereto adjusting cams; Fig. 6 shows a modification in which the adjusting screw is slink into the top cross-bar, the letter sustaining bars being rooved at .the ends so as to slide vertica on the outside the standards, and

rovide with holes for receiving the cam ey; Fig. 7 shows a vertical section throughone of the letter retaining bars, on the line a--b, of Fig. 6', w'ith the cam key, partly in section, inserted in the apertures provided for receiving the same; Fig. 8 shows the segmental cam key by which the letter bars are raised for insertion of characters, or.

adjustably locked. Fig. 9 is a vertical section taken on the line c-(l, of F g. 4, showf ing a modification of the retaining bars,

to adapt. it to fit the groove in the bars. Referring to. the drawings: 1 are the supporting standards, provided with any and a modification in the shape of the lug suitably base 2, and terminating above In any desired top'piece, as 3. .In order that the bars (5 may move vertically there are either. provided -in the standards 1 the grooves 4, or else the bars are hollowed'at tlucelir ends 4 to correspond with the stand-' ar 5.

7 and 7 are lugs integral with' the characters 8,

Toassist the weight of.t he parallel horizontal bars 6 in more firmly holdingthe characters 8 in place, I may make use and;

preferabl do, of a screw 9, which wor m the-crossar 9', and is either provided with a headprojecting above the crossbar-9', or,

to render unauthorized tampering therewith more difiicult, the head may besu'nk in the cross-bar, as shown in Fig. 6.

To enable the letters a) be held more Se 2 curely, in a modified construction, shown in Fig. 9, I attach to the'letters 8 a spring 001'- rugated lug 7 and I provide the retaining be held more securelythan the smooth lugs;

10 is a spiral spring housed in the upperportion' of the standard 1, for 'assistin the pressure of the bars upon th lugs o? the characters.

'12 is a cam controlled by the square head 13, forming a modifiedarrangement for clamping the lugs of theletters or charac' cient... It is evia ters- 14 are holes formed into the arallel bars adapted to receivethe cam 15 w ich, in-

this instance, is fashioned on one end of the key 16, which also has in its handle the square wrench 17, which fits the square heads 13 of the cams, and also theserew head 18. In order to overcome a. tendency of the bars to longitudinal displacement under the 7 action of the cams 12, a vertical guide pin 15 may be inserted between the bars, as

shown in Fig. 5.

The 0 eration is as follows ;The parallel bars 6 being arranged between the standards 1, as shown in the various figures, the lugs 7 or 7 of the letters onbharacters 8 are inserted between any desir d pair of bars,

- and are normally held therein by the weight oi? the parallel bars themselves. The'bars may be separated, for the reception of the letters,'by inserting the cam 15 of the key 16 in the holes 14: of the bars 6,'and turning it around into the position l 9. -To make action 7 one edge,- as 20, is

of the cam-key easier, slightly rounded." To more securely hold the characters between: the bars, the screw 9, th feaded in the cross-bar 9, or set in, as in FigI 6, is employed, eitheralone, .as shown in i g. 1, or assisted by the spiral spring 10, which may, however, itself supply t e necessary pressure. This spring is in many cases justed.

Having this fully described: and jam tra'ted myinvention, what I claim is: 1

' 1. In sin-advertising sign, the: combination of asupporting frame, a series o'f'par'allel bars movable in said frame, a series of characters provided with extending lugs adapted and hold the parallel bars in c ,with themselves'and against to be clamped between two parallel bars,

a bar fixedly attached to the frame andprovided with a cam adapted to tightly clamp ose contact the charactersupporting lugs, substantiall asset forth. 2. In an advertising sign, t e combination .of a frame, parallel bars movable lengthwise ba'rs upon the 'of said frame, a series of characters provided with lugs adapted to be clamped between said bars, means provided. in said bars for insertion of a cam-key, and a cam-key adapted to separate the adjacent bars for the insertion of the characters, as set forth.

3. In a sign-board, a supporting frame, parallel bars vertically movable in said substantially frame, said bars being pr'ovidcdwith grooves upon their abutting edges, incombmation with a legible character provided with a spring corrugated lug adapted to fit into said groove, and means for adjusting the lug,substantially as set forth. l. In a sign-board, a legible character a pair of parallel bars, flat on the abutting side, the other having a longitudinal groove along the abutting-edge in combination with a spring corrugated lug, adapted to be received and held in said groove, and means for regulating the pressure between the bars.

5. In a si n-board, a pair of parallel bars, one of said bars being provided on its abut-- ting edge with a segmental circular opening,

a series of characters provided with lugs adapted to beclamped between said bars,

and a segmental cam-key adapted to fit said segmental opening and upon turning either way to separate the adjacent bars for. the insertion of,the characters, substantially as set forth.

In testimony whereof, I have signed my name to this specification in the presence'of two subscribing witnesses.

HENRY WILLSON.

Witnesses:

\VM. JULrUs Maa'i'wlox, ALBERT STETBON.

one of said bars being a 

